Season five for Call of Duty: Modern Warfare 3 and Warzone went live on July 24, bringing new weapons and aftermarket parts for you to try out. The update also introduced two secret attachments, one of which is the Quartermaster Suppressor.

The Quartermaster Suppressor is a muzzle attachment available for many weapons across all categories except shotguns. The attachment has quickly become a must-have in any Warzone build, especially with long-range meta picks like the STG44 in season five.

If you’re looking to use the Quartermaster Suppressor for your Season Five builds in Warzone and MW3, here’s everything you need to know about unlocking it.

The Quartermaster Suppressor unlocks by activating its Armory Unlock in MW3 and Warzone. To unlock the attachment, you’ll need to complete eight Daily Challenges across Multiplayer, Zombies, and Warzone. Since the three Daily Challenges are easy to complete in any CoD mode, you can unlock the Quartermaster Suppressor in under an hour.